25201012

素因数分解:

$2^2\times {\mathrm{157}}^1\times {\mathrm{40129}}^1$

素因数の和:40290

約数の個数: 12

約数和(自身を含む): 44383780

約数和(自身を除く): 19182768

約数列:

[1, 2, 4, 157, 314, 628, 40129, 80258, 160516, 6300253, 12600506, 25201012]

約数ペア:

[(1, 25201012), (2, 12600506), (4, 6300253), (157, 160516), (314, 80258), (628, 40129)]